Absolutely. You are eligible to receive lifetime free updates for Magento 2 Delivery Availability Checker Extension. You will get to download the latest version of the extension you have purchased as and when it is released.

Read this guide on How to Configure Delivery Availability in Magento 2 to setup this Magento 2 Delivery Availability Checker Extension.

Here are the few more resource to help you get most out of this Magento 2 Delivery Availability Checker Extension.

• How to Add Contactless(No-Contact) Delivery in Magento 2
• How to Add Delivery Date to Checkout Page in Magento 2
• How to Setup Cash on Delivery (COD) Payment Method in Magento 2